Polymerization Shrinkage and Mechanical Property of Light Curing Composite Resin Incorporated a Novel Monovinyl Acrylates Monomer.

doi:10.13701/j.cnki.kqyxyj.2018.05.011

Abstract

Abstract: Objective: To evaluate the polymerization shrinkage and mechanical property of light curing composite resin incorporated new monovinyl acrylates monomer. Methods: New monovinyl acrylates monomer was incorporated into traditional composite resin as experimental group. The composite resin used TEGDMA was served as control group 1. Tentric N-Ceram, Neofil, and GC were selected as control group 2, 3, and 4, respectively. The X-ray micro-computed tomography was used to determine the volume of five composite resins after polymerization shrinkage. The mechanical properties of the samples were measured with universal testing machine and microhardness meter. The polymerization shrinkage, flexural strength, compressive strength, diametral tensile strength, and microhardness were measured and compared. Results: The polymerization shrinkage of the light curing composite resin incorporated new monovinyl acrylates monomer was decreased in contrast to the control group 1. There were no significant differences in polymerization shrinkage between the experimental group and the control group 2-4. There were no significant differences in mechanical properties between the experimental group and the four control groups. Conclusion: The incorporation of monovinyl acrylates monomer possessed the potential to replace TEGDMA as a reactive diluent in dental resin which displayed favorable and unique properties. The material has its value in clinical application.

Key words: Composite resin, Polymerization shrinkage, Flexural strength, Compressive strength, Diametral tensile strength, Microhardness

ZHANG Na, XIE Chao, HE Hui-ming, GONG Xu. Polymerization Shrinkage and Mechanical Property of Light Curing Composite Resin Incorporated a Novel Monovinyl Acrylates Monomer.[J]. Journal of Oral Science Research, 2018, 34(5): 505-508.

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